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We've had a handful of users report that logging in loops them back to the login page. Repeated attempts produce the same result. I've yet to identify any commonality, we've had reports from both IE and FF users, PC and Mac, various different ISPs. AOL seems to come up more often than other ISPs, but they're not the only ones, and plenty of AOL users report no problem.

I haven't been able to replicate any of this behavior. Logging in from my own machine with their login credentials causes no problem. Have there been other reports of this? This isn't a new problem for us but I've been encouraged to try and track down the cause.

Is there anything non-stock about your OJS, e.g. have you made template modifications, or enabled SSL or mod_rewrite? Also, I noticed in your previous posts that you've tried to enable selective free access to users at registered Uni's and 3rd world countries--Could there be some bugs in those modifications? Finally, check to see if your users are using web accelerators (such as Google Web Accelerator), which have been known to cause problems with OJS.

I thought I would revive this post. We recently upgraded to version 2.2.4, and we are still seeing this issue. I'm still having a hell of a time tracking it down, it seems to happen MORE for users of AOL, and I noticed a few with Safari, but I've also seen all the other major browsers and operating system. The described issue is basically that they attempt to login, and are redirected back to the login page without any error message. I've so far been entirely update to replicate this in any meaningful way. Some of these people then report the problem "fixes itself" at a later time, very baffling.

We also have a user who seems to be sent to the login page when they click the link sent using the "one click" review. I'm wondering if one of the developers can shed some light on whether that could be the same thing? I'm thinking a login credential (cookie, session, whatever) isn't being stored correctly so in both cases it's asking them to login.

I'm digging through the code but would love any other insight into what might cause this.

Okay I've done so and will let you know if I have further issues. I should say I've also noticed a larger number of issues from people in developing nations, where they may have shared IP setups causing issues, here's hoping.

we have the same problem with an OCS installation. Loggin in results in an endless loop of two different http requests. After stopping the loop the session is oviously established - so the user is actually logged in and can use the system properly. The same effect occurs if the user clicks on User Home and even if he tries to log out.

In our case the problem only occurs with FF. IE seems to work fine.

Another observation: The problem does only occur on conference level, i.e., when the user directly logs in to a conference or uses User Home for a conference. On the root level of the OCS installation login is possible without problems.

Trying to change the session_check_ip option in config.inc.php does not help in our case.

As recommended, setting session_check_ip = Off, has cleared up this issue for us. As we haven't been able to recreate the bug.

Another recommendation I have, is that in IE8, try going to developer tools (F12).Change browser mode to IE8, and change document mode to IE8 Standards. Then restart IE8, possibly the computer, and retry.

That and if user's are able to, try using a better browser, such as Chrome or Firefox.

The loop (all users) occurs after a user as an administrator comes in, and login as another User ("login as" in the user List) and then logOff.Then I try to make the logoff with my user and it is not completed and return to "User Home".

After a while (they probably when the session times out) when attempting to login with my User (the first) the loop begins to occur.I thought initially it was a problem with permissions on files chache, but that's ok, even put 7777 in that folder, but the problem persists.